EUVD-2026-73447
GHSA-859v-q97f-rf5f
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Local kernel driver, low-privilege trigger, no interaction needed; full C/I/A reflects SYSTEM-level access after successful EoP.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
5DescriptionCVE.org
Out-of-bounds read in Windows NTFS allows an authorized attacker to elevate privileges locally.
AnalysisAI
Local privilege escalation in the Windows NTFS driver affects every supported Windows release from Server 2012 through Windows 11 25H2, allowing an authenticated local user to gain SYSTEM-level access. The root cause is an out-of-bounds read (CWE-125) in the NTFS kernel driver, which an attacker can trigger without user interaction once they have a local user session. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The attacker must hold a valid local user account on the target Windows system (PR:L) - remote-only network access without an established local session is insufficient. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | CVSS 7.8 (High) accurately reflects the local attack vector and low privilege requirement - this is not remotely exploitable without first obtaining local access, which meaningfully reduces exposure compared to an AV:N flaw. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Apply the Microsoft-released security updates for the affected Windows version, bringing each system to or above the fixed build numbers listed in the EUVD dataset (e.g., Windows 10 22H2 to 10.0.19045.7725, Windows 11 24H2 to 10.0.26100.9445, Windows Server 2025 to 10.0.26100.33438 - full version table at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69312). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all Windows systems running Server 2012 through Windows 11 25H2 and assess current patch levels via WSUS, System Center, or endpoint management tools to quantify organizational exposure. …
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Same weakness CWE-125 – Out-of-bounds Read
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External POC / Exploit Code
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